Proceedings of the Korean Society of Marine Engineers Conference (한국마린엔지니어링학회:학술대회논문집)
- 2000.05a
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- Pages.122-126
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- 2000
Incremental Theory of Reinforcement Damage in Discontinuously-Reinforced Composite
분산형 복합재료의 강화재 손상 증분형 이론
Abstract
In particle or short-fiber reinforced composites cracking of the reinforcements is a significant damage mode because the broken reinformcements lose load carrying capacity . The average stress in the inhomogeneity represents its load carrying capacity and the difference between the average stresses of the intact and broken inhomogeneities indicates the loss of load carrying capacity due to cracking damage. The composite in damage process contains intact and broken reinforcements in a matrix, An incremental constitutive relation of particle or short-fiber reinforced composites including the progressive cracking damage of the reinforcements have been developed based on the Eshelby's equivalent inclusion method and Mori-Tanaka's mean field concept. influence of the cracking damage on the Eshelby's equivalent inclusion method and Mori-Tanaka's mean field concept. Influence of the cracking damage on the stress-strain response of the composites is demonstrated.
Keywords
- Damage mechanics;
- reinforcement cracking;
- Particle or short-fiber reinforced composites;
- Load carrying capacity;
- Equivalent inclusion method;
- Mean field theory;
- Micromechanics